This Week in Pictures: Sept. 12-18

The humanitarian crisis unfolding along the borders of Europe, as refugees and migrants from war-afflicted countries – mostly Syria, but also Iraq and Afghanistan – continued this week. Hungary closed its border with Serbia, forcing waves of refugees to seek entry into Europe through Croatia; Germany imposed temporary border controls; and other European countries have threatened to do the same.

In the U.S., Republican presidential candidates took to the stage for the second round of debates.

Wildfires continue to ravage California as flash floods took lives in Utah. And a massive 8.3-magnitude earthquake in Chile triggered mass evacuations and tsunamis as far as Japan.